BLD-HEAV08-10 · Lesson 2 · 54 clock hours · field
Multi-Machine Field Execution: Earthwork to Rough Grade
Objective. Operating assigned equipment in crew rotation, the student will complete the earthwork phase of the capstone site—strip topsoil, bulk excavate, doze and push fill, and achieve rough grade within the tolerance specified in the project plan—while performing all required pre-shift inspections and maintaining a real-time equipment log.
⚠ Pending professional review
This lesson, its worked examples and its practice questions has not yet been verified by a licensed professional engineer or master tradesperson or by a certification or approval body. It is a study draft and may contain errors. Do not use it as instructions for work on a job site or on live equipment. Always follow your instructor, your supervising professional, and current official references and regulations.
VoTechWorks program approval and accreditation are still in progress. Credentials are issued only by the certifying bodies named in each program, after their own exams.
What This Field Day Demands
Today you are not practicing isolated skills—you are executing a real earthwork sequence as a crew. Every machine you operate, every grade shot you take, and every safety decision you make will be evaluated against the same standards NCCER Level 3 and real construction foremen expect. The goal is a rough-graded site within the tolerance written in the project plan, achieved safely, on schedule, and fully documented.
Pre-Shift Inspection: Non-Negotiable First Step
No engine starts until you have completed the standard daily inspection form for your assigned machine. Walk the full circle—check fluid levels (engine oil, coolant, hydraulic fluid, fuel), inspect undercarriage or tires for damage, examine bucket or blade cutting edges, check all lights and backup alarm, look for hydraulic leaks, and verify that the seat belt and ROPS/FOPS structure are intact. The instructor witnesses and initials your form. If you find a deficiency that affects safe operation, you apply a lockout/tagout training tag to the machine and report it immediately. That machine stays out of service until the deficiency is corrected and cleared. This is not a drill—tagging out a defective machine protects your crew and mirrors the NCCER maintenance competency you are being assessed on.
The Phased Earthwork Sequence
Earthwork follows a logical order because each phase sets up the next. Skipping or rushing a phase costs time and accuracy later.
Phase 1 – Topsoil Strip (Excavator Lead). The excavator strips the organic layer and stockpiles it away from the work zone. Topsoil is kept separate because it may be respread for finish work later. Stripping depth is specified in the project plan—typically several inches. Work in organized passes to avoid mixing stripped material with subgrade.
Phase 2 – Bulk Excavation and Fill Push (Excavator and Dozer). The excavator cuts to rough subgrade elevation and loads or casts material. The dozer pushes bulk fill to approximate rough elevation in lifts. Do not try to achieve perfect grade during bulk operations—your goal is to get close efficiently. Dozer blade load and pitch control determine how much material you move per pass; keep the blade full but not spilling excessively at the corners.
Phase 3 – Spoil Management (Loader). The rubber-tired loader moves excess spoil to the designated stockpile or haul-off area as directed by the crew safety officer. The loader operator must maintain clear sight lines and stay aware of the excavator's swing radius. Nobody stands inside the swing radius of a rotating excavator—ever.
Phase 4 – Rough Grade (Motor Grader). The grader makes the initial rough-grade pass targeting plan elevation and cross-slope. Read your grade stakes before each pass. Blade angle, circle position, and travel speed all affect how much material the blade moves. Work with the stakes, not against them.
Phase 5 – Edge Trim (Skid Steer). The skid steer cleans edges around obstacles, corners, and drainage structures where larger machines cannot reach. Tight maneuvering around fixed objects demands slow speed and constant awareness of bucket position.
Swing Radius and Exclusion Zones
The rotating upper structure of an excavator can strike and kill a person without warning. Your crew safety officer marks and enforces the swing-radius exclusion zone. If you are not the operator, you stay outside it. If you are the operator, you do not swing toward personnel under any circumstances. When the simulated bystander encroachment scenario is called, you stop the machine, sound the horn, and wait for the zone to clear—then resume. Any other response is an unsafe act.
Responding to a Simulated Utility Strike
When the instructor places the utility-strike flag, you stop all nearby machines immediately, do not dig further, and notify the crew safety officer. In real practice, you would call 811 and your supervisor. You treat every unidentified underground feature as energized or pressurized until proven otherwise. Moving the machine or resuming dig without clearance is an automatic stop and remediation.
Midpoint Tailgate Meeting and Grade Check
At the midpoint of the field block, all machines come out of service and the crew holds a 10-minute tailgate safety meeting documented on the standard form. This is also when you take grade shots with a hand level or builder's level and rod, compare your readings to plan elevation, identify areas that are high or low, and revise your work sequence in writing before resuming. This is foreman-level accountability. Document your findings clearly: note the station or grid point, the plan elevation, your shot elevation, and the correction needed.
Equipment Log
You maintain a real-time equipment log throughout the shift. Record machine ID, start time, fuel level at start, hours at start, any issues observed during operation, and hours and fuel level at shutdown. Accurate logs are required for fleet management and are referenced in NCCER craft-level competency verification.
Staying Focused on Safe Outcomes
Wear your full PPE at all times in the field area: hard hat, high-visibility vest, steel-toed boots, safety glasses, and gloves. Use two-way radios for crew communication—do not rely on hand signals alone across a noisy site. Keep communication brief and clear. Confirm instructions before acting on them. A safe site is a productive site.
Key terms9
Rough gradeThe approximate finished elevation of a subgrade surface following bulk earthwork, before fine grading or paving; typically held to a specified tolerance stated in the project plan.
Topsoil stripThe first earthwork operation, removing the organic topsoil layer and stockpiling it separately so it is not mixed into structural fill or subgrade material.
Swing radius exclusion zoneThe area swept by the rotating upper structure of an excavator or crane; no personnel are permitted inside this zone while the machine is operating.
Lockout/tagout (LOTO)A safety procedure that de-energizes equipment and uses a physical lock or tag to prevent accidental startup while maintenance or inspection is performed; in this program, training tags serve as the equivalent during pre-operation deficiency holds.
Grade shotA measurement taken with a level and rod to determine the existing elevation at a point on the site, compared against the plan elevation to find the cut or fill needed.
Tailgate safety meetingA brief, documented crew safety meeting held at the job site—often at the start of a shift or a phase change—to review hazards, task assignments, and emergency procedures.
Equipment operation logA written record maintained per shift that captures machine identification, operating hours, fuel levels, and any mechanical issues noted during operation; used for fleet management and maintenance scheduling.
Lift (earthwork)A single layer of fill material placed and compacted before the next layer is added; placing fill in controlled lifts ensures adequate compaction throughout the full depth.
811 (Call Before You Dig)The federally designated phone number in the United States for contacting a one-call notification center before excavation begins, so underground utilities can be located and marked.
Worked examples3
1. Your builder's level reads a rod measurement of 4.85 ft at a stake. The instrument height (HI) is 103.20 ft. The plan calls for a finish subgrade elevation of 98.50 ft. How much cut or fill is needed at this point, and in which direction?
- Step 1 – Find the existing ground elevation. Existing elevation = HI − rod reading = 103.20 − 4.85 = 98.35 ft.
- Step 2 – Compare to plan elevation. Plan elevation = 98.50 ft. Difference = 98.50 − 98.35 = 0.15 ft.
- Step 3 – Determine direction. The plan elevation (98.50 ft) is higher than the existing ground (98.35 ft), so you need to add fill.
Answer: Fill 0.15 ft (about 1.8 inches) at this stake location.
2. The project tolerance for rough grade is ±0.10 ft. At three grade-check points you record existing elevations of 98.62 ft, 98.44 ft, and 98.53 ft against a plan elevation of 98.50 ft. Which points are within tolerance and which require correction?
- Step 1 – Calculate deviation at Point 1: 98.62 − 98.50 = +0.12 ft (high by 0.12 ft). Tolerance is ±0.10 ft, so 0.12 ft exceeds tolerance. Requires cut.
- Step 2 – Calculate deviation at Point 2: 98.44 − 98.50 = −0.06 ft (low by 0.06 ft). 0.06 ft is within ±0.10 ft. Within tolerance.
- Step 3 – Calculate deviation at Point 3: 98.53 − 98.50 = +0.03 ft (high by 0.03 ft). 0.03 ft is within ±0.10 ft. Within tolerance.
Answer: Point 1 is out of tolerance (cut 0.12 ft needed). Points 2 and 3 are within the ±0.10 ft tolerance.
3. You are logging equipment at the start of the shift. The motor grader shows 1,247.3 hours on the meter and 3/4 tank of fuel. At end of shift the meter reads 1,252.1 hours and the tank is at 1/4. The tank holds 80 gallons. How many hours did the machine operate, and approximately how many gallons of fuel were consumed?
- Step 1 – Operating hours: 1,252.1 − 1,247.3 = 4.8 hours.
- Step 2 – Fuel consumed: The tank dropped from 3/4 to 1/4, a drop of 1/2 tank. Half of 80 gallons = 40 gallons consumed.
- Step 3 – Record both figures on the equipment operation log: 4.8 operating hours, approximately 40 gallons fuel used.
Answer: The grader operated 4.8 hours and consumed approximately 40 gallons of fuel.
The math in this lesson2
Learners compute surface elevation as HI minus rod reading and the cut to finish subgrade.
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In class: Each crew member completes a pre-shift walk-around and fluid-check inspection on their assigned machine using the program's standard daily inspection form before any engine start; the instructor witnesses and initials each completed form, and any machine with a safety deficiency is tagged out using the program's lockout/tagout training tag until corrected—this mirrors NCCER maintenance competency verification. · Crews execute the phased earthwork sequence: the excavator strips and stockpiles topsoil, the dozer pushes bulk fill to rough elevation, and the loader moves spoil as directed by the crew safety officer who stands clear of swing radius and maintains visual contact with operators; the grader makes the initial rough-grade pass targeting the plan elevation; the skid steer trims and cleans edges around obstacles. Instructors observe machine control, body position, travel path discipline, and response to two scripted safety interruptions (a simulated underground-utility strike flag and a simulated bystander encroachment) and score each student on a live observation checklist. · At the midpoint of the field execution block, each crew pulls machines out of service, holds a 10-minute tailgate safety meeting documented on a standard tailgate form, reviews their grade shots taken with a hand level or builder's level against the plan, identifies any areas out of tolerance, and adjusts the remainder of their sequence in writing before resuming work—this mirrors real foreman-level accountability expected of NCCER Level 3 graduates.
Materials: Excavator, dozer, rubber-tired loader, motor grader, skid steer (program fleet or host-site equipment), standard daily inspection forms, equipment operation logs, lockout/tagout training tags, hand level or builder's level with rod, grade stakes, spray paint for grade marks, tailgate-meeting forms, personal protective equipment (hard hat, high-visibility vest, steel-toed boots, safety glasses, gloves), two-way radios
Check: Instructor scores each student on the live operation checklist (separate checklists per machine class, aligned to NCCER performance-profile tasks); pass requires all critical safety behaviors scored 'satisfactory' and an overall score of 75% or higher per machine operated. Any unsafe act (operating outside swing-radius exclusion zone, bypassing pre-shift inspection, failure to respond correctly to the simulated utility strike) results in an immediate stop and a required remediation session before the student re-enters the field rotation.
Practice check8
Answer each question, then check it. Nothing is recorded; this is your own practice.
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